VR_PA1VDD_IN2NRESET3XTA4GND5XTB6BUSY7DIO18DIO29DIO310VBAT_IO11DCC_FB12GND13DCC_SW14VBAT15MISO_TX16MOSI_RX17SCK_RTSN18NSS_CTS19GND20GND21RFIO22GND23GND24GND25